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Finding the Fourth Proportional to 66,810.24, 92,154.24 and 42,899.04

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Solution

The fourth proportional to 66,810.24, 92,154.24 and 42,899.04 is: 59,172.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,810.24 : 92,154.24 = 42,899.04 : x
  2. Step 2: Convert to fraction form
    66,810.24/92,154.24 = 42,899.04/x
  3. Step 3: Cross multiply
    66,810.24x = 92,154.24 × 42,899.04
  4. Step 4: Simplify right side
    66,810.24x = 3,953,328,427.93
  5. Step 5: Solve for x
    x = 3,953,328,427.93/66,810.24
  6. Step 6: Final answer
    x = 59,172.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.